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3x + 2x = 180 - 15 - 10
5x = 155
x = 155/5
x = 31
KLN = 3x + 15
= 3 × 31 + 15
= 93 + 15
= 108
24) 3x + 15 + 2x + 10 = 180
5x + 25 = 180
5x = 155
x = 31
KLN = 3x + 15
= 3 . 31 + 15
= 108